build: rename HAVE_MSGHDR_MSG_ACCTRIGHTS to HAVE_STRUCT_MSGHDR_MSG_ACCTRIGHTS
[Samba.git] / libcli / smb / smb2cli_create.c
blob834a88146ce3a46ef012d2323677ce5b0205b7d8
1 /*
2 Unix SMB/CIFS implementation.
3 smb2 lib
4 Copyright (C) Volker Lendecke 2011
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 3 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program. If not, see <http://www.gnu.org/licenses/>.
20 #include "includes.h"
21 #include "system/network.h"
22 #include "lib/util/tevent_ntstatus.h"
23 #include "smb_common.h"
24 #include "smbXcli_base.h"
25 #include "smb2_create_blob.h"
27 struct smb2cli_create_state {
28 uint8_t fixed[56];
30 uint64_t fid_persistent;
31 uint64_t fid_volatile;
32 struct smb_create_returns cr;
33 struct smb2_create_blobs blobs;
36 static void smb2cli_create_done(struct tevent_req *subreq);
38 struct tevent_req *smb2cli_create_send(
39 TALLOC_CTX *mem_ctx,
40 struct tevent_context *ev,
41 struct smbXcli_conn *conn,
42 uint32_t timeout_msec,
43 struct smbXcli_session *session,
44 struct smbXcli_tcon *tcon,
45 const char *filename,
46 uint8_t oplock_level, /* SMB2_OPLOCK_LEVEL_* */
47 uint32_t impersonation_level, /* SMB2_IMPERSONATION_* */
48 uint32_t desired_access,
49 uint32_t file_attributes,
50 uint32_t share_access,
51 uint32_t create_disposition,
52 uint32_t create_options,
53 struct smb2_create_blobs *blobs)
55 struct tevent_req *req, *subreq;
56 struct smb2cli_create_state *state;
57 uint8_t *fixed;
58 uint8_t *name_utf16;
59 size_t name_utf16_len;
60 DATA_BLOB blob;
61 NTSTATUS status;
62 size_t blobs_offset;
63 uint8_t *dyn;
64 size_t dyn_len;
65 size_t max_dyn_len;
66 uint32_t additional_flags = 0;
67 uint32_t clear_flags = 0;
69 req = tevent_req_create(mem_ctx, &state,
70 struct smb2cli_create_state);
71 if (req == NULL) {
72 return NULL;
75 if (!convert_string_talloc(state, CH_UNIX, CH_UTF16,
76 filename, strlen(filename),
77 &name_utf16, &name_utf16_len)) {
78 tevent_req_oom(req);
79 return tevent_req_post(req, ev);
82 if (strlen(filename) == 0) {
83 TALLOC_FREE(name_utf16);
84 name_utf16_len = 0;
87 fixed = state->fixed;
89 SSVAL(fixed, 0, 57);
90 SCVAL(fixed, 3, oplock_level);
91 SIVAL(fixed, 4, impersonation_level);
92 SIVAL(fixed, 24, desired_access);
93 SIVAL(fixed, 28, file_attributes);
94 SIVAL(fixed, 32, share_access);
95 SIVAL(fixed, 36, create_disposition);
96 SIVAL(fixed, 40, create_options);
98 SSVAL(fixed, 44, SMB2_HDR_BODY + 56);
99 SSVAL(fixed, 46, name_utf16_len);
101 blob = data_blob_null;
103 if (blobs != NULL) {
104 status = smb2_create_blob_push(state, &blob, *blobs);
105 if (tevent_req_nterror(req, status)) {
106 return tevent_req_post(req, ev);
110 blobs_offset = name_utf16_len;
111 blobs_offset = ((blobs_offset + 3) & ~3);
113 if (blob.length > 0) {
114 SIVAL(fixed, 48, blobs_offset + SMB2_HDR_BODY + 56);
115 SIVAL(fixed, 52, blob.length);
118 dyn_len = MAX(1, blobs_offset + blob.length);
119 dyn = talloc_zero_array(state, uint8_t, dyn_len);
120 if (tevent_req_nomem(dyn, req)) {
121 return tevent_req_post(req, ev);
124 if (name_utf16) {
125 memcpy(dyn, name_utf16, name_utf16_len);
126 TALLOC_FREE(name_utf16);
129 if (blob.data != NULL) {
130 memcpy(dyn + blobs_offset,
131 blob.data, blob.length);
132 data_blob_free(&blob);
135 if (smbXcli_conn_dfs_supported(conn) &&
136 smbXcli_tcon_is_dfs_share(tcon))
138 additional_flags |= SMB2_HDR_FLAG_DFS;
142 * We use max_dyn_len = 0
143 * as we don't explicitly ask for any output length.
145 * But it's still possible for the server to return
146 * large create blobs.
148 max_dyn_len = 0;
150 subreq = smb2cli_req_send(state, ev, conn, SMB2_OP_CREATE,
151 additional_flags, clear_flags,
152 timeout_msec,
153 tcon,
154 session,
155 state->fixed, sizeof(state->fixed),
156 dyn, dyn_len,
157 max_dyn_len);
158 if (tevent_req_nomem(subreq, req)) {
159 return tevent_req_post(req, ev);
161 tevent_req_set_callback(subreq, smb2cli_create_done, req);
162 return req;
165 static void smb2cli_create_done(struct tevent_req *subreq)
167 struct tevent_req *req =
168 tevent_req_callback_data(subreq,
169 struct tevent_req);
170 struct smb2cli_create_state *state =
171 tevent_req_data(req,
172 struct smb2cli_create_state);
173 NTSTATUS status;
174 struct iovec *iov;
175 uint8_t *body;
176 uint32_t offset, length;
177 static const struct smb2cli_req_expected_response expected[] = {
179 .status = NT_STATUS_OK,
180 .body_size = 0x59
184 status = smb2cli_req_recv(subreq, state, &iov,
185 expected, ARRAY_SIZE(expected));
186 TALLOC_FREE(subreq);
187 if (tevent_req_nterror(req, status)) {
188 return;
191 body = (uint8_t *)iov[1].iov_base;
193 state->cr.oplock_level = CVAL(body, 2);
194 state->cr.create_action = IVAL(body, 4);
195 state->cr.creation_time = BVAL(body, 8);
196 state->cr.last_access_time = BVAL(body, 16);
197 state->cr.last_write_time = BVAL(body, 24);
198 state->cr.change_time = BVAL(body, 32);
199 state->cr.allocation_size = BVAL(body, 40);
200 state->cr.end_of_file = BVAL(body, 48);
201 state->cr.file_attributes = IVAL(body, 56);
202 state->fid_persistent = BVAL(body, 64);
203 state->fid_volatile = BVAL(body, 72);
205 offset = IVAL(body, 80);
206 length = IVAL(body, 84);
208 if ((offset != 0) && (length != 0)) {
209 if ((offset != SMB2_HDR_BODY + 88) ||
210 (length > iov[2].iov_len)) {
211 tevent_req_nterror(
212 req, NT_STATUS_INVALID_NETWORK_RESPONSE);
213 return;
215 status = smb2_create_blob_parse(
216 state, data_blob_const(iov[2].iov_base, length),
217 &state->blobs);
218 if (tevent_req_nterror(req, status)) {
219 return;
222 tevent_req_done(req);
225 NTSTATUS smb2cli_create_recv(struct tevent_req *req,
226 uint64_t *fid_persistent,
227 uint64_t *fid_volatile,
228 struct smb_create_returns *cr)
230 struct smb2cli_create_state *state =
231 tevent_req_data(req,
232 struct smb2cli_create_state);
233 NTSTATUS status;
235 if (tevent_req_is_nterror(req, &status)) {
236 return status;
238 *fid_persistent = state->fid_persistent;
239 *fid_volatile = state->fid_volatile;
240 if (cr) {
241 *cr = state->cr;
243 return NT_STATUS_OK;
246 NTSTATUS smb2cli_create(struct smbXcli_conn *conn,
247 uint32_t timeout_msec,
248 struct smbXcli_session *session,
249 struct smbXcli_tcon *tcon,
250 const char *filename,
251 uint8_t oplock_level, /* SMB2_OPLOCK_LEVEL_* */
252 uint32_t impersonation_level, /* SMB2_IMPERSONATION_* */
253 uint32_t desired_access,
254 uint32_t file_attributes,
255 uint32_t share_access,
256 uint32_t create_disposition,
257 uint32_t create_options,
258 struct smb2_create_blobs *blobs,
259 uint64_t *fid_persistent,
260 uint64_t *fid_volatile,
261 struct smb_create_returns *cr)
263 TALLOC_CTX *frame = talloc_stackframe();
264 struct tevent_context *ev;
265 struct tevent_req *req;
266 NTSTATUS status = NT_STATUS_NO_MEMORY;
268 if (smbXcli_conn_has_async_calls(conn)) {
270 * Can't use sync call while an async call is in flight
272 status = NT_STATUS_INVALID_PARAMETER;
273 goto fail;
275 ev = samba_tevent_context_init(frame);
276 if (ev == NULL) {
277 goto fail;
279 req = smb2cli_create_send(frame, ev, conn, timeout_msec,
280 session, tcon,
281 filename, oplock_level,
282 impersonation_level, desired_access,
283 file_attributes, share_access,
284 create_disposition, create_options,
285 blobs);
286 if (req == NULL) {
287 goto fail;
289 if (!tevent_req_poll_ntstatus(req, ev, &status)) {
290 goto fail;
292 status = smb2cli_create_recv(req, fid_persistent, fid_volatile, cr);
293 fail:
294 TALLOC_FREE(frame);
295 return status;